Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"danh kien java snippets" » "dinh kien java snippets", "danh viet java snippets", "linh kien java snippets", "danh kien va snippets", "danh kien java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("danh kien java snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh kien java snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh kien java snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh kien java snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.